/*
 * Copyright (c) 2023-2025 elsfs Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.elsfs.cloud.common.mybatis.ext.mybatis;

import com.baomidou.mybatisplus.core.metadata.TableFieldInfo;
import java.util.function.Predicate;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;

/** 谓词持有器 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class PredicateHolder {

  /** 存储谓词判断器 */
  private static final ThreadLocal<Predicate<TableFieldInfo>> PREDICATE_THREAD_LOCAL =
      new ThreadLocal<>();

  /**
   * 获取谓词
   *
   * @return 谓词
   */
  public static Predicate<TableFieldInfo> get() {
    return PREDICATE_THREAD_LOCAL.get();
  }

  /**
   * 设置谓词
   *
   * @param predicate 谓词
   */
  public static void set(Predicate<TableFieldInfo> predicate) {
    PREDICATE_THREAD_LOCAL.set(predicate);
  }

  /** 移除谓词 */
  public static void remove() {
    PREDICATE_THREAD_LOCAL.remove();
  }
}
